// rtti1.cpp -- using the RTTI dynamic_cast operator
#include <iostream>
#include <cstdlib>
#include <ctime>

using std::cout;

class Grand{
private:
    int hold;
public:
    Grand(int h = 0) : hold(h) {}
    virtual void Speak() const { cout << "I am a grand class!\n"; }
    virtual int Value() const { return hold; }
};

class Superb : public Grand {
public:
    Superb(int h = 0) : Grand(h) {}
    void Speak() const override { cout << "I am superb class!\n"; }
    virtual void Say() const { cout << "I hold the superb value of " << Value() << "!\n"; }
};

class Magnificent : public Superb {
private:
    char ch;
public:
    Magnificent(int h = 0, char c = 'A') : Superb(h), ch(c) {}
    void Speak() const override { cout << "I am magnificent class!\n"; }
    void Say() const override {
        cout << "I hold the character " << ch << " and the integer " << Value() << "!\n";
    }
};

Grand * GetOne();

int main() {
    std::srand(std::time(0));
    Grand * pg;
    Superb * ps;
    for (int i = 0; i < 5; ++i) {
        pg = GetOne();
        pg->Speak();
        if ((ps = dynamic_cast<Superb *>(pg)))
            ps->Say();
        delete pg;
    }
    return 0;
}

// generate one of three kinds of objects randomly
Grand * GetOne() {
    Grand * p;
    switch (std::rand() % 3) {
        case 0:
            p = new Grand(std::rand() % 100);
            break;
        case 1:
            p = new Superb(std::rand() % 100);
            break;
        case 2:
            p = new Magnificent(std::rand() % 100, 'A' + std::rand() % 26);
            break;
    }
    return p;
}
